InsidersTradesSigma
Total declarations
Companies
▲ Purchases (2 ops.)
▼ Sales (13 ops.)
Insider track record
ExecutiveDisclosed buys
2
Disclosed sells
13
T+90 hit rate
40%
T+90 mean return
-4.9%
Across 5 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the complete record of transactions filed by Leach Jacob Steven, Chief Technology Officer. Director active across 2 companies, notably DEXCOM INC. Aggregated, 26 disclosures have been recorded. Breakdown: 2 buys · 13 sells. Total volume traded: €33.2m. History available since 9 June 2021. The latest transaction was disclosed on 22 May 2026 (Retenue fiscale). Regulator: SEC (Form 4). The full history is free.
Declarations26 total
1,451 shares@ US$71.900.0003% mcap0.3% of flowCommon StockSEC:0001093557-26-000099:0
14,076 shares@ US$70.38012.7% of flowCommon StockSEC:0001093557-25-000081:0
35,906 shares0Common StockSEC:0001093557-25-000065:0
7,107 shares0Common StockSEC:0001093557-25-000016:0
744 shares@ US$76.870.2% of flowCommon StockSEC:0001093557-24-000190:0
746 shares@ US$69.150.1% of flowCommon StockSEC:0001093557-24-000167:0
745 shares@ US$115.05080.2% of flowCommon StockSEC:0001093557-24-000127:0
14,639 shares@ US$134.41075.3% of flowCommon StockSEC:0001093557-24-000051:0
26,053 shares0Common StockSEC:0001093557-24-000037:0
9,697 shares@ US$0.0010.0% of flowCommon StockSEC:0001093557-24-000011:0
2,932 shares@ US$121.85051.0% of flowCommon StockSEC:0001093557-23-000255:0
30,764 shares@ US$125.0010.3% of flowCommon StockSEC:0001093557-23-000110:0
3,540 shares@ US$111.3991.1% of flowCommon StockSEC:0001093557-23-000079:0
25,397 shares@ US$0.0010.0% of flowCommon StockSEC:0001093557-23-000054:0
10,425 shares@ US$114.44763.3% of flowCommon StockSEC:0001093557-23-000034:0
6,741 shares@ US$0.0010.0000% mcap0.0% of flowCommon StockSEC:0001093557-22-000049:0
2,925 shares@ US$0.0010.0% of flowCommon StockSEC:0001093557-21-000292
2,925 shares@ US$0.0010.0000% mcap0.0% of flowCommon StockSEC:0001093557-21-000292:0
1,248 shares@ US$541.361.7% of flowCommon StockSEC:0001093557-21-000214
1,248 shares@ US$541.360.0022% mcap2.2% of flowCommon StockSEC:0001093557-21-000214:0
50,000 shares@ US$1.53770.58% mcap50.0% of flowCommon StockSEC:0001225208-21-011565:0
Ideal exit: 13 May 2022 (T+270)
50,000 shares@ US$1.537750.0% of flowCommon StockSEC:0001225208-21-011565
Ideal exit: 13 May 2022 (T+270)
12,087 shares@ US$476.700.019% mcap18.9% of flowCommon StockSEC:0001093557-21-000193:0
12,087 shares@ US$476.7014.3% of flowCommon StockSEC:0001093557-21-000193
22,755 shares@ US$395.0021.8% of flowCommon StockSEC:0001093557-21-000167
25 of 26 declarations
About Leach Jacob Steven
Jacob Steven Leach is the EVP Chief Technology Officer and Director at Dexcom Inc and SenesTech, Inc. He is responsible for technology strategy and innovation within these companies. His role is essential in guiding strategic decisions and ensuring technological performance.
